I have a four node cluster setup which I need to migrate from subnet A to subnet B. The cluster has roughly 12 instances running on it. I've found articles to update the SQL Cluster IP, but I've got ...

We are trying to eliminate a single point of failure for our files without a SAN. We currently have a single server for file serving (locally), web server, and database (in VM). Looking at using DRBD ...

Is it possible to prevent pcs/dlm/crm from fencing the node when it fails?
I use cluster only to be able to build GFS2 storage, and there's my own way of avoiding split-brain. So I do not need things ...

I'm doing load balancing with HAProxy and use JBoss EAP as application servers.
The Haproxy server is configured to route incoming requests to the application servers.
How can I integrate Jboss EAP ...

I have several servers with local SATA/SAS RAID arrays. I would like to run there virtual machines with some level of automated failover - sync VM to secondary node in 1 minute interval and automated ...

I have a Glassfish (2.0) cluster with two nodes. I want to pass some extra JVM settings to a single node only. Is this configurable? At least from the console I see, this selective configuration is ...

Things to be checked:
Directory structures (recursive, with any attributes and properties)
Configuration (equiv and partial conf, format specific or generic, with regex)
Registry (presence of keys, ...

I'm designing a head node whose primary function is to submit jobs to the Torque/Maui scheduler and secondary function is to run test jobs. Unfortunately, most hardware selection guides for clusters ...

I have been given the task to define firewall rules between 2 Windows clusters. The first cluster hosts a clustered middleware application and the second cluster hosts SQL Server. The 2 clusters are ...

I'm a unix guy who is new to clustering with Windows. I have two Windows 2012 servers that have the StorNext clustered filesystem mounted as drives on each. If I try to add the File Sharing role, I ...

I'm building up a 2-node cluster based on CMAN + Pacemaker cluster stack, but I have no hardware STONITH devices. However both nodes are connected to a shared storage via iSCSI and I would like to use ...

I have a host with Windows 7. I installed VMware Workstation where I have installed two virtual machines. Each virtual machine is a rhel 6.2 node running clustersuite.
Do you know which fence device ...

I run a moderately sized cluster and I am having a queue problem. For example I have a node with 128GB of memory and a program that I set the amount of memory per core. So for example if I set memory ...

We have two hosts running 2008 R2 and Hyper-V. iSCSI SAN using a Equallogic 6k and ps4000 pooled together. They are connected to two Dell 6224 switches. I have one VLAN for the iSCSI and then another ...

I have a MySQL cluster with 2 data storage nodes running from last 2 years.
Just recently I have observed a hardware issue in one of the nodes (data storage). I may need to replace this node with new ...

Does anyone have any resources that can lead me to a how-to or at least more information on setting up clustered FTP servers on CentOS?
I'm very new to servers in general (all I've done is set up a ...

I'm building a 24 nodes php-fpm farm using three Supermicro MicroCloud (8 nodes in 3U, nice and tight)
At first, I was planning to have each of them nodes have a disposable HDD with CentOS on (6 or 5 ...

I'm using the ClusterSSH tool (using the cssh command) to admin clusters of between 4 and 8 machines.
By default, each terminal onto a cluster host is tiled, and opened to the right of the previous, ...

I have found several articles by academics on how to setup JBoss clustering but I would like some opinions from people how have REALLY done it.
First off in every serious article I've come across I ...

I have a cluster of 3 servers with cepth storage over 9 disks (3 each server).
One osd is going down/out and so I "remove" it, after that system start to rebalance data over the remainig osd but after ...